﻿@page

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Cover</title>
    <link href="common.css" rel="stylesheet" />
    <script src="jquery-3.3.1.min.js"></script>
    <script src="common.js"></script>
    <script>
        $(document).ready(function () {
            $("button").click(function () {
                $("#cover").show();
            });
        });
    </script>
</head>
<body>
    <div id="cover">
        <div></div>
        <img src="loading.gif" />
    </div>
    <button>开启遮罩</button>
</body>
</html>
